346 search results - page 25 / 70 » Location-dependent performance of cooperative networks with ... |
109
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CCR
2006
14 years 12 months ago
2006
We consider the uplink power control problem in a single cell CDMA wireless data system. Each user specifies upper and lower QoS bounds. We formulate the considered problem as a g...
101
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ICC
2009
IEEE
15 years 6 months ago
2009
IEEE
—We consider a multi-access two-way relay network where multiple pairs of users exchange information with their pre-assigned partners with the assistance of an intermediate relay...
103
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ADHOCNOW
2008
Springer
15 years 6 months ago
2008
Springer
In this paper we address the problem of efficient power allocation in the uplink of CDMA wireless networks, emphasizing on the support of realtime services’ QoS prerequisites. Th...
GLOBECOM
2009
IEEE
15 years 6 months ago
2009
IEEE
Abstract—Cognitive radio technologies have become a promising approach to increase the efficiency of spectrum utilization. Although cognitive radio has been intensively studied ...
WCNC
2008
IEEE
15 years 6 months ago
2008
IEEE
— In this paper, we investigate two selective relaying schemes in cooperative OFDM systems. Selective OFDMA relaying, where the relay selection is performed in a per-subcarrier m...